1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 08 19 C - N-STATUS Replaced by WSS-M1F28-B M. Dumitrescu, NA 2010 01 28 N-STATUS Replaced by WSS-M1F29-B, WSS-M1F28-B and WSS-M99P43-B J. Williams1993 09 07 Released NB00I10043054283 A J Stock, J Williams Printed copies are uncontrolled C
2、opyright 2010, Ford Global Technologies, LLC Page 1 of 6 LEATHER, GENUINE, SUPPLE, MILLED WSB-M1F17-B NOT TO BE USED FOR NEW DESIGN LEATHER, GENUINE, STANDARD WEAR, MILLED WSS-M1F17-C NOT TO BE USED FOR NEW DESIGN LEATHER, GENUINE, STANDARD WEAR, MILLED WSS-M1F17-D TRI-CROSSLINKED FINISH NOT TO BE U
3、SED FOR NEW DESIGN LEATHER, GENUINE, HIGH WEAR, MILLED WSS-M1F17-E NOT TO BE USED FOR NEW DESIGN LEATHER, GENUINE, SOFT HAND, MILLED WSS-M1F17-F NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are finished, full grain, selection “A“, steer hides which have been t
4、anned to retain the natural odor of the leather and softened to provide maximum seating comfort without sacrificing the leathers remaining physical properties. 2. APPLICATION These specifications were released originally for material used as interior trim leather. Perforated leather must also meet r
5、equirements of para 3.24. Because the hand and appearance characteristics will be adversely affected, the leather shall not be subjected to steam heat or organic solvents during any manufacturing process except as specified below. WSB-M1F17-B was released originally for applications where a lower st
6、iffness interior trim leather is desired. WSS-M1F17-C was released originally for standard wear seat and interior trim applications. WSS-M1F17-D was released originally for molded seat applications formed under heat and pressure. It has improved resistance to blistering when formed with heat, pressu
7、re and organic solvents. The use of heat pressure and organic solvents adversely affects the hand and appearance of the leather. For this reason, Materials and Design Engineering must approve processing conditions used for this material prior to its use in a production application. WSS-M1F17-E was r
8、eleased originally for high wear seat applications where a high wing sport seat bolsters where improved wear resistance is required. WSS-M1F17-F was released originally for luxury seat applications where a softer hand is desired. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mat
9、erial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 6 3.4 SAMPLE SELECTI
10、ON Samples for testing shall be selected no closer than 80 mm from edge of the hide. 3.5 APPEARANCE (FLTM BI 109-01) The color, grain, visual aesthetics, hand and finish shall match the approved Design Center master sample, or shall be as specified on the engineering drawing. 3.6 GRADE Full top grai
11、n dyed leather, not buffed. The leather must be through dyed to a sufficient depth to prevent undyed fibers from showing through after sewing. Also, the color of the dye must be compatible in appearance with the surface coating. 3.7 FINISH All hides shall show no defects or surface blemishes affecti
12、ng the appearance of the material, such as brush marks or stops and bad flows. 3.8 THICKNESS, mm, range 0.80 - 1.30 (ASTM D 1813) 3.9 BREAKING STRENGTH, min (ASTM D 2208) Any direction 400 N 3.10 ELONGATION at 400 N, max 60% (ASTM D 2208) 3.11 TEAR STRENGTH (Trapezoid), min (ASTM D 5733, Integration
13、 Method*) Any direction 44 N *As approved by Materials Engineering. 3.12 SEAM FATIGUE RESISTANCE (FLTM BN 106-02, average of 3 samples, any direction) Needle hole elongation after test, max 3 mm ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright
14、2010, Ford Global Technologies, LLC Page 3 of 6 3.13 STIFFNESS, max (ASTM D 747, direct reading at 60 angle with 0.01 N-m moment weight on a 0.7 N-m Tinius Olsen stiffness tester) Direct Scale Reading B C D E F Any direction, max . Shallow or smooth grain 15 20 20 20 15 . Deep grain 20 25 25 30 20 T
15、est Method: Samples shall be randomly selected (any direction) from a 0.37 m2min area. The test specimen shall be 50 x 25 mm with 25 mm of the 50 mm dimension clamped in jaw; 13 mm span from clamp to bending plate. Conduct tests on 4 samples with uncoated side up and 4 samples with uncoated side dow
16、n. Record the average results obtained from the 8 scale readings (4 up, 4 down). Production material shall be similar in hand, when mutually judged by the material supplier and the product manufacturer, as material originally approved by the Materials Engineering Activity. 3.14 COLOR PROPERTIES 3.14
17、.1 Resistance to Fade (SAE J 1885, ISO 105-A02/ AATCC Evaluation Procedure 1) 225.6 kJ/m2Rating 4 488.8 kJ/m2Rating 3 In addition, the material must remain flexible and exhibit no cracking when bent around a 6.4 mm mandrel. 3.14.2 Resistance to Heat Aging, min Rating 4 (7 days at 100 +/- 2 C, ISO 10
18、5-A02/ AATCC Evaluation Procedure 1) The heat aged sample shall not exhibit color tone change in excess of the above rating. 3.14.3 Soiling and Cleanability, min (FLTM BN 112-08, ISO 105-A02/ AATCC Evaluation Procedure 1) After Cleaning, min Rating 3 ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS
19、-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 3.14.4 Resistance to Cleaning Agents, Rating 4 max discoloration (FLTM BN 107-01, 10 cycles) Test Procedure: Substitute the leather for the textile material. Saturate white cotton cloth with the c
20、leaners listed. Evaluation according to the AATCC Evaluation Procedure 3 (Chromatic Transference Scale). Cleaners (see also para 5.1) 1) Window cleaner with ammonia 2) All Purpose Cleaner 3) Isopropyl Alcohol/Water 50% v/v (5 cycles, Rating 3) 3.14.5 Crocking Test Wet/Dry: Rating 4 (FLTM BN 107-01)
21、Evaluation according to the AATCC Evaluation Procedure 3 (Chromatic Transference Scale). 3.14.6 Resistance to Migration Staining (FLTM BN 103-01) After test, the specimens and the accessory test materials must not show any surface deterioration, change in color tone (hue), or any other defects and t
22、hey must be equal to or better than the sample originally approved by Materials Engineering. In addition there shall be no evidence of injurious exudation, adhesion (tackiness), separation or color transfer when placed face to face with itself and the standard vinyl test material. 3.15 FOGGING 3.15.
23、1 Method A: Photometric Procedure (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number, min 60 Formation of clear film, droplets or crystals is cause for rejection. If oily droplets, crystals or clear film are present and the fog number is greater than 60, sa
24、mple must be retested per para 3.15.2. If the fog number is less than 60, the material is rejected. 3.15.2 Method B: Gravimetric Procedure (SAE J1756, 16 h at 100 C heating, 21 C cooling plate, post test conditioning, 4 h) Weight of Condensate, max 5 mg ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B
25、WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 6 3.16 COLD FLEXIBILITY, min -35 C (SAE J 323, Method A) The material must remain flexible and after bending at 180, it must exhibit no cracks. 3.17 “W“ FLEX REQUIREMENTS, min (FLTM BN 102-02) Fi
26、ne cracks through the finish coating are acceptable, provided there is no evidence of finish peeling or roll back visible without the use of magnification. . After aging 225 kJ/m2(SAE J 1885) 30,000 cycles . After aging 7 days at 100 +/- 2 C 30,000 cycles 3.18 SEAT BELT ABRASION No wear through the
27、(FMVSS 209, S5.1(d), 10,000 cycles, finish to russet except replace the hexagonal steel rod with a 40 mm diameter. round steel rod covered with 2 mm thick rubber sheet, 80 +/- 5 Shore A and abrade with No 8 cotton duck) 3.19 RESISTANCE TO PILLING WEAR No wear through the (FLTM BN 108-14, 5 minutes)
28、finish to russet WSS-M1F17-B, C, D, F 89 N Load WSS-M1F17-E 111 N Load 3.20 RESISTANCE TO SCUFFING 200 cycles (SAE J 365, Specimen Holder E140-15) The materials color in the scuffed area shall be compatible with the adjacent unscuffed areas. The resistance to scuffing of production material shall be
29、 equal to or better than that exhibited by the master sample approved for production by the Materials Engineering Activity. 3.21 ODOR, max Rating 2 (FLTM BO 131-01) 3.22 SHRINKAGE, max. 5.0% (FLTM BN 105-03, except Heat Cycle 100 +/-2 C, 3 cycles) 3.23 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max
30、 100 mm/minute ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 6 3.24 LEATHER FUNCTIONAL PROPERTIES Leather wear and process capability tests are required for all seating applications. In addition,
31、 other trim applications may require unique functional evaluations. These tests should be evaluated by a cross-functional team prior to color and trim strategy approval to assess the effects of the leather selection, seat style, sew style, foam firmness, etc. on the predicted level of customer satis
32、faction and long term durability. 3.25 ADDITIONAL REQUIREMENTS FOR PERFORATED LEATHER Resistance to Fiber Show Through None Visible Test Method: The test shall be conducted on a 305 mm x 305 mm area of original perforated leather seating surface. With moderate pressure, vacuum the entire surface for
33、 1 minute using the vacuum cleaner specified in SAE J948 with 28 mm nozzle and maximum pressure setting. The material shall be judged a failure if there is fiber show through to the surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specification. 5.1 CLEANING AGENTS (See para 3.12.4) 1) Window cleaner with ammonia E4AZ-19C507-AA* 2) All Purpose Cleaner E0AZ-19526-AA* or E8AZ-19623-AA* 3) Isopropyl Alcohol/Water 50% v/v *or Ford Motor Company Recommended Equivalents
